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Using silver nanowire antennas to enhance the conversion efficiency of photoresponsive DNA nanomotors

Yuan, Q. ; Zhang, Y. ; Chen, Y. ; Wang, R. ; Du, C. ; Yasun, E. ; Tan, W.

Proceedings of the National Academy of Sciences, 06/07/2011, Vol.108(23), pp.9331-9336 [Tạp chí có phản biện]

ISSN: 0027-8424 ; E-ISSN: 1091-6490 ; DOI: http://dx.doi.org/10.1073/pnas.1018358108

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  • Nhan đề:
    Using silver nanowire antennas to enhance the conversion efficiency of photoresponsive DNA nanomotors
  • Tác giả: Yuan, Q. ; Zhang, Y. ; Chen, Y. ; Wang, R. ; Du, C. ; Yasun, E. ; Tan, W.
  • Chủ đề: Antennas (Electronics) -- Usage ; Antennas (Electronics) -- Atomic Properties ; Antennas (Electronics) -- Materials ; Silver -- Usage ; Silver -- Atomic Properties ; Nanoparticles -- Usage ; Nanoparticles -- Composition ; Molecular Motors (Biochemistry) -- Properties
  • Là 1 phần của: Proceedings of the National Academy of Sciences, 06/07/2011, Vol.108(23), pp.9331-9336
  • Mô tả: Plasmonic near-field coupling can induce the enhancement of photoresponsive processes by metal nanoparticles. Advances in nanostructured metal synthesis and theoretical modeling have kept surface plasmons in the spotlight. Previous efforts have resulted in significant intensity enhancement of organic dyes and quantum dots and increased absorption efficiency of optical materials used in solar cells. Here, we report that silver nanostructures can enhance the conversion efficiency of an interesting type of photosensitive DNA nanomotor through coupling with incorporated azobenzene moieties. Spectral overlap between the azobenzene absorption band and plasmonic resonances of silver nanowires increases light absorption of photon-sensitive DNA motor molecules, leading to 85% close-open conversion efficiency. The experimental results are consistent with our theoretical calculations of the electric field distribution. This enhanced conversion of DNA nanomotors holds promise for the development of new types of molecular nanodevices for light manipulative processes and solar energy harvesting. energy conversion | localized surface plasmon | photo-driven nanomotor doi/10.1073/pnas.1018358108
  • Ngôn ngữ: English
  • Số nhận dạng: ISSN: 0027-8424 ; E-ISSN: 1091-6490 ; DOI: http://dx.doi.org/10.1073/pnas.1018358108

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